#!/usr/bin/env python3

# Copyright (c) 2005-2014 Fpemud <fpemud@sina.com>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.


import subprocess
from ...._plugin import KernelAddonPlugin


class Plugin(KernelAddonPlugin):

    def patch_kernel(self, context):
        subprocess.check_call("""sed -i '/Default to relatime unless overriden/ {
                                         s/relatime/noatime/;
                                         n;
                                         s/MS_NOATIME/MS_RELATIME/;
                                         n;
                                         s/MNT_RELATIME/MNT_NOATIME/;
                                         n;
                                     }' %s/fs/namespace.c""" % (context.get_kernel_work_dir()), shell=True)
